am fe8620ac: Merge "Update AudioService to reflect phone state changes with...

am fe8620ac: Merge "Update AudioService to reflect phone state changes with AudioFocus. Phone calls and rings are treated as a new client, with a dedicated client ID that identifies it in the audio focus stack. When it is present in the stack, others clients cannot re

Merge commit 'fe8620ac' into froyo-plus-aosp

* commit 'fe8620ac':
  Update AudioService to reflect phone state changes with AudioFocus.